Technical JTD help please

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Technical JTD help please

paullpunto

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Dec 29, 2011
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Marea 2001 JTD 110
when its cold it goes great, long journeys on motorways it goes great, around town on short journeys no problem either.
However if I drive on a longish journey with a lot of stop starting after about 30 miles its gets sluggish and doesnt feel as if the turbo is working at all. When pulling away from stop its really slow accelerating and makes noticable dark smoke.
Never cuts out, no warning lights, if I let it cool down, its as good as new again...
Any ideas?
Cheers Paull
 
Seems to be overfueling. Check the pipes from turbo to the manifold for any leaks, maybe none as it works when cold but never hurts to check.
Another possibility is that the EGR valve starts to stick open so remove and clean it.
Here is a guide for the egr.

Other stuff that may cause problems are MAF and wastegate actuator, but I think they can be rulen out as they work when cold.
Fuel/airfilters, injectors etc....
 
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